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Comments on Research trends of macrophage polarization

a bibliometric analysis

Ho, Yuh-Shan

Section Editor(s): Ji, Yuan-Yuan

doi: 10.1097/CM9.0000000000000499
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Trend Research Centre, Asia University, No. 500, Lioufeng Road, Wufeng, Taichung County 41354, Taiwan, China.

Correspondence to: Dr. Yuh-Shan Ho, Trend Research Centre, Asia University, No. 500, Lioufeng Road, Wufeng, Taichung County 41354, Taiwan, China E-Mail: ysho@asia.edu.tw

How to cite this article: Ho YS. Comments on Research trends of macrophage polarization: a bibliometric analysis. Chin Med J 2019;00:00–00. doi: 10.1097/CM9.0000000000000499

Received 21 July, 2019

Online date: November 7, 2019

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0

Gao et al[1] recently published a paper in Chinese Medical Journal entitled “Research trends of macrophage polarization: a bibliometric analysis.” In this article, Gao et al mentioned in Section Methods, that “Data were obtained from the Science Citation Index Expanded (SCI-E) database of the ‘Web of Science Core Collection’ on October 25, 2017. The search query used was ‘TS = (macrophage AND polarization).’ The timespan was set between the years 2007 and 2016, and the language was set to ‘English,’ and document type was set to ‘article.’ The search resulted in 3064 articles that met the inclusion criteria.”

The Web of Science Core Collection is designed mainly for researchers to find published literatures, not for bibliometric studies.[2] Therefore, using SCI-E with an accurate bibliometric method is critical for all researchers.[2] Due to the biases from the Web of Science Core Collection, Ho's group proposed “front page” (including the article title, the abstract, and the author keywords) as a filter to improve the bibliometric method.[3]

Using the same method as mentioned in the original paper by Gao et al,[1] 3079 articles were found. Further analysis results were shown as follows: 2224 articles (72% of the 3079 articles) include only “macrophage” in their “front page”; 2022 articles (66%) include only “polarization” in their “front page”; 1557 articles (51%) include both “macrophage” and “polarization” in their “front page”; 928 articles (30%) include phrase “macrophage polarization” in their “front page”; 390 articles (13%) do not include any of “macrophage” and “polarization” in their “front page.” For example highly cited articles with 100 or more total citations from Web of Science Core Collection since publication to the end of 2016 (TC2016 ≥ 100)[4] were “Eosinophils sustain adipose alternatively activated macrophages associated with glucose homeostasis” by Wu et al,[5] and “Regulatory mechanisms for adipose tissue M1 and M2 macrophages in diet-induced obese mice” by Fujisaka et al.[6]

The result (1557 articles) showed a difference from the result in the original paper with 3064 articles by Gao et al.[1] It is clear that using of the TS = (macrophage AND polarization) is inappropriate for “Research trends of macrophage polarization: a bibliometric analysis.” In addition, keywords (“macrophage” and “macrophages”) and (“polarization,” “polarizations,” “polarize,” “polarizes,” “polarized,” “polarizing,” and, “polarizability”) used in SCI-E may also be considered.

From my view, authors could have provided more accurate results if they had used appropriate method.

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References

1. Gao H, Huang FY, Wang ZP. Research trends of macrophage polarization: a bibliometric analysis. Chin Med J 2018; 131:2968–2975. doi: 10.4103/0366-6999.247215.
2. Ho YS. Comment on: “A bibliometric analysis and visualization of medical big data research” Sustainability 2018, 10, 166. Sustainability 2018; 10:4851doi: 10.3390/su10124851.
3. Fu HZ, Wang MH, Ho YS. The most frequently cited adsorption research articles in the Science Citation index (expanded). J Colloid Interf Sci 2012; 379:148–156. doi: 10.1016/j.jcis.2012.04.051.
4. Hsu YHE, Ho YS. Highly cited articles in health care sciences and services field in Science Citation index expanded: a bibliometric analysis for 1958-2012. Method Inform Med 2014; 53:446–458. doi: 10.3414/ME14-01-0022.
5. Wu D, Molofsky AB, Liang HE, Ricardo-Gonzalez RR, Jouihan HA, Bando JK, et al. Eosinophils sustain adipose alternatively activated macrophages associated with glucose homeostasis. Science 2011; 332:243–247. doi: 10.1126/science.1201475.
6. Fujisaka S, Usui I, Bukhari A, Ikutani M, Oya T, Kanatani Y, et al. Regulatory mechanisms for adipose tissue M1 and M2 macrophages in diet-induced obese mice. Diabetes 2009; 58:2574–2582. doi:10.2337/db08-1475.
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